Re: [PATCH v2 0/6] CAN: Add support for CAN in AM65,J721e and AM64

On 05.08.21 14:44, Aswath Govindraju wrote:

Hi Jan,

On 05/08/21 6:10 pm, Jan Kiszka wrote:

quoted

On 05.08.21 14:32, Aswath Govindraju wrote:

quoted

Hi,

On 02/08/21 6:15 pm, Nishanth Menon wrote:

quoted

On 15:40-20210726, Aswath Govindraju wrote:

quoted

The following series of patches add support for CAN in SoC's AM65, J721e
and AM64.

This patch series is dependent on [1] and [2] and I have requested for an
immutable tag from the Marc Kleine-Budde(maintainer of net tree).

[1] - https://lore.kernel.org/patchwork/patch/1423048/
[2] - https://www.spinics.net/lists/linux-can/msg08108.html

changes since v1 -
- changed the message ram configuration to use the maximum value
  in each field, for better performance.

Aswath Govindraju (3):
  arm64: dts: ti: am654-base-board: Disable mcan nodes
  arm64: dts: ti: k3-am64-main: Add support for MCAN
  arm64: dts: ti: k3-am642-evm/sk: Add support for main domain mcan
    nodes in EVM and disable them on SK

Faiz Abbas (3):
  arm64: dts: ti: k3-am65-mcu: Add Support for MCAN
  arm64: dts: ti: k3-j721e: Add support for MCAN nodes
  arm64: dts: ti: k3-j721e-common-proc-board: Add support for mcu_mcan
    nodes

I noticed in my checkup: https://pastebin.ubuntu.com/p/zSk39M943N/
warnings with dtbs_check, I think the bindings need a little more help
here (please also notice the iot platform warnings getting introduced).

Jan,

Can you please point me to the schematics for iot platform? Also, is CAN
subsystem brought out on the iot platform boards?

Schematics aren't publicly available. If you have specific questions, I
may help, though.

CAN is not in use yet (not connected AFAIK).

Thank you for clarifying this. I will disable the CAN DT nodes in
k3-am65-iot2050-common.dtsi in my respin.

That is not a problem for the current design, so you can go ahead with it.

Current defconfig - though not yet upstream based - can be found at [1].
The CAN subsystem is enabled, but not the AM65x CAN driver.

Jan

[1]
https://github.com/siemens/meta-iot2050/tree/master/recipes-kernel/linux/files

-- 
Siemens AG, T RDA IOT
Corporate Competence Center Embedded Linux

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